I can't imagine a bit of methylene blue would hurt anything. You need absolutely fuck all to dye a huge amount of liquid.
Just wait and see what the DOT eats through.
@snottyotter started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I can't imagine a bit of methylene blue would hurt anything. You need absolutely fuck all to dye a huge amount of liquid.